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404 N Wiget Lane <br />Sequoia Walnut Creek C94598 <br />(925) 988 8-9600 <br />FAX (925) 988-9673 <br />Analytical%Nlww secluotalabs com <br />qGLtl,r Ryan Inc - Dublin Project Chevron <br />6747 Sierra Court Suite J Project Number Chevron # 9-5775 Reported <br />Dublin CA 94568 Project Manager Scott Polston 09-May-00 11 21 <br />Total Purgeable Hydrocarbons (C6-C12), BTEX and MTBE by DHS LUFT <br />Sequoia Analytical - Walnut Creek <br />Reporting <br />Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes <br />1NF 2 (15 20) (W005160-04) Air <br />Sampled 04 -May -00 15 20 Received 05 -May -00 14 40 r-uIL <br />Purgeable Hydrocarbons <br />3600 <br />1000 mg/ml Air 20 OE08013 06 -May 00 06 -May 00 DHS LUFT <br />Benzene <br />960 <br />10 " <br />Toluene <br />790 <br />10 <br />Ethylbenzene <br />34 <br />10 <br />Xylenes (total) <br />180 <br />10 <br />Methyl tert-butyl ether <br />5100 <br />50 " <br />Surrogate a a a-Tnfluorotoluene <br />141 % 70-130 S-04 <br />EX -1 (W005160-05) Water Sampled 04 -May -00 15 05 <br />Received 05 -May -00 14 40 P-03 <br />Purgeable Hydrocarbons <br />68000 <br />50000 ug/l 1000 OE08003 08 -May -00 08 May -00 EPA <br />8015M18020 <br />Benzene <br />20000 <br />500 " <br />Toluene <br />ND <br />5Q0 <br />Ethylbenzene <br />660 <br />500 " <br />ylenes (total) <br />ND <br />500 " <br />ethyl tent -butyl ether <br />400000 <br />2500 " <br />Surrogate a a a-Tnfluorotoluene <br />107% 70-130 " <br />luota Analytical - Walnut Creek The results in this report apply to the samples analyzed in accordance with the chain of <br />custody document This analytical report must be reproduced in its entirety <br />Page 3 of 11 <br />W <br />